Hair straightening device



June 25, 1935. A. l., THOMAS ET Al.

HAIR STRAIGHTENING DEVICE Original Filed Sept. 23, 1933 lNvlzNToRs Hr'hujll, Thozggs BYLvZyREZ Ls '22m @M11/If ATTORNEYS EU Mlm "Wg,

Patented June 25, 1935 UNITED sTATEs PATENT OFFICE HAIR STRAIGHTENING DEVICE Arthur L. Thomas, Trenton, and Lily D. Ellis, Princeton, N. d.

Original application September-23, 1933, Serial No. 690,714. Divided and this application September 17, 1934, Serial No. 744,402

3 Claims. (ci. 132-36) This invention relates to adevice for straightsion cord I3 extends through one of the collars ening kinky or wavy human hair. v I4, as shown in Fig. 2. The device also includes j The subject matter hereof is a division of our a fiat elongated plate or bar I5 of metal or any allowed vapplication Serial No. 690,714, led Sepother suitable rigid material. The bar I5 is of a. 5 tember 23, 1933. length to extend through the oven provided by 5 An object of the invention is the provision of the inner shell iii and is of a cross-sectional size a device of the indicated character, whereby as to leave a space surrounding the same when the straightening or altering of the structure of disposed in the oven, which space will be occukinky or wavy hair may be effectually accompied bythe hair and other accessories to be plished so that the hair will be straightened with hereinafter described. The bar I5 has a plu- 10 a permanent effect. rality of notches I6 in one end thereof to receive Another object of the inventionis the provithe cord or`stri'ng for the purpose of fastening sion of a device of the indicated character wherethe hair to the bar. by the method of straightening kinky or wavy It is to be understood that the hair will be hair described in the above-mentioned applicaproperly treated according to known methods 15 tion may be efectually practiced. preparatory to being subjected to the inuence of The invention consists in a device characterthe device. A strand of the treated hair is laid ized by the novel and improved features illus- 011 thek bar I5 of the device and is secured at trated in the accompanying drawing and hereinthe scalp end by tying the samewith a cord or after described and claimed. tape extended in the notches in the end and 20 In the drawing- Y sides of the bar I 5, as shown. Next, an absorbent Figure 1 is a side View 0f a device embodying material is dipped in a solution containing an inthe features of the invention, the device being gredient to out the solution previously used on the shown in use; hair and also ingredients to soften the hair. The

Fig. 2 is an enlarged longitudinal section of the absorbent material is then wrapped around the 25 device, portions thereof being broken away; bar I5 and the hair laid against the same in Fig. 3 is a section taken on the line 3 3 straightened condition. Next,aheat-conducting of Fig. 2, and material, such as metal foil, is Wrapped around Fig. 4 is a view of one end portion of the ilat on the absorbent material in such manner so that bar or plate against which the hair is laid in approximately one-quarter inch extends beyond 30 the straightening operation. the bar at the scalp end thereof. A felt pad is The invention contemplates a device whose then slipped over the wrappings on the bar and Specific features are illustrated in the drawing is brought in contact with the scalp to protect by way of example. The device includes inner the same from the heat, and a protecting clip and outer tubular metal shells I0 and II, reof heat-resisting material is clamped over the 35 spectively, each of which isl substantially of oval wrappings beyond the bar to Aprevent the heat formation with opposite sides practically flat. from escaping to the scalp. The oven I Il and. The inner shell I0 constitutes an oven andis attached heater are placed over the Wrapped hair, longer than the outer shell II. This outer shell and the current is turned on. Heat'will'be ap- 40 II constitutes a cover for an electric heater I2, plied removing all moisture and acting on the 40v which is arranged in the space provided bestructure of the hair whereby it will be changed tween the shells I0 and II. The heater I2 may so that the hair will remain straightened with a be of any suitable type, which has not been permanent effect. illustrated in detail but which consists of a shell We claim: f f of mica, heat-resisting and electrical insulating l. A hair straightening device comprising a 45 cement in which the heating element is emtubular oven, heating means surrounding said bedded, and an outer asbestos covering which oven, and a flat bar adapted to extend through will be disposed next to the outer shell II. An said oven, said bar having provision for securing extension cord I3 having the usual conductors the scalp ends of the hair thereto while the hair supplies current to the heater I2. The ends of is laid lengthwise of the bar. 50 the outer shell II are closed by collars I4, which 2. A hair vstraightening device comprising a are slipped over the inner shell I0 and are fastubular oven, heating means surrounding said. tened to the outer shell II in any suitable manoven, and a flat bar adapted to extendthrough ner. These collars are made of a heat-resisting said oven, said bar having notches in one end y and electrical insulating material. The extenthereof to accommodate a tyingelernent tose- 55 1,2y y Y cure the scalp ends of the hair thereto while the hair is laid lengthwise of the bar.

e 3. A hair straightening device comprising an inner and an outer tubular shell, an electrical 5 heating means arranged between said shells, the

inner shell constituting an oven, and a flat bar for the hair which may extend through said` oven, said oven having a cross-sectional shape substantially similar to the cross-sectional shape of the bar.

, ARTHUR L. THOMAS.

LILY D. ELLIS.v 

